id:A003592 - OEIS Search Results

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Numbers of the form 2^i*5^j.

+0
32

1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 625, 640, 800, 1000, 1024, 1250, 1280, 1600, 2000, 2048, 2500, 2560, 3125, 3200, 4000, 4096, 5000, 5120, 6250, 6400, 8000, 8192, 10000 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`These are the natural numbers whose reciprocals are terminating decimals. - David Wasserman (wasserma(AT)spawar.navy.mil), Feb 26 2002` `A132726(a(n),k)=0 for k<=a(n); A051626(a(n))=0; A132740(a(n))=1; A132741(a(n))=a(n). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 27 2007` `Where record values greater than 1 occur in A165706: A165707(n)=A165706(a(n)). [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 26 2009]`
	LINKS	`R. Zumkeller, Table of n, a(n) for n = 1..1000` `Eric Weisstein's World of Mathematics, Regular Number` `Eric Weisstein's World of Mathematics, Decimal Expansion`
	CROSSREFS	`Sequence in context: A114652 A067943 A067937 this_sequence A159765 A018653 A133020` `Adjacent sequences: A003589 A003590 A003591 this_sequence A003593 A003594 A003595`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 22 20:51 EST 2009. Contains 167312 sequences.

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